create new more elaborated socket code. This is not 100% interface compatible.

.gitignore

@@ -39,3 +39,4 @@ gmon.out
 test-driver
 /assets/html/_documentation.html
 tags
+trio.h

include/tr/interface/socket.h

@@ -0,0 +1,52 @@
+/**
+ * \file
+ * Inteface for common socket operations. (bind, send, recv)
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __TR_INTERFACE_SOCKET_H__
+#define __TR_INTERFACE_SOCKET_H__
+
+#include <sys/types.h>
+
+#include "trbase.h"
+#include "tr/remote_data.h"
+
+typedef int           (* fptr_TR_socketBind)(void *);
+typedef int           (* fptr_TR_socketConnect)(void *);
+typedef TR_RemoteData (* fptr_TR_socketRecv)(void *, size_t);
+typedef ssize_t       (* fptr_TR_socketSend)(void *, TR_RemoteData);
+
+TR_INTERFACE(TR_Socket) {
+	TR_IFID;
+	fptr_TR_socketBind    bind;
+	fptr_TR_socketConnect connect;
+	fptr_TR_socketRecv    recv;
+	fptr_TR_socketSend    send;
+};
+
+extern int           TR_socketBindAction(void *);
+extern int           TR_socketConnectAction(void *);
+extern TR_RemoteData TR_socketRecv(void *, size_t);
+extern ssize_t       TR_socketSend(void *, TR_RemoteData);
+
+#endif // __TR_INTERFACE_SOCKET_H__
+
+// vim: set ts=4 sw=4:

include/tr/remote_data.h

@@ -0,0 +1,48 @@
+/**
+ * \file
+ * Abstraction layer above BSD sockets. Capsules and simplifies connect
+ * accept and listen.
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __TR_REMOTE_DATA_H__
+#define __TR_REMOTE_DATA_H__
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "trbase.h"
+
+TR_CLASS(TR_RemoteData) {
+	unsigned char      * data;
+	size_t               ndata;
+	struct sockaddr_in   addr; // for now... should be more generic
+	socklen_t            addrlen;
+};
+
+extern TR_RemoteData TR_emptyRemoteData;
+
+void TR_remoteDataSetData(TR_RemoteData, unsigned char *, size_t);
+
+#endif // __TR_REMOTE_DATA_H__
+
+// vim: set ts=4 sw=4:
+

include/tr/socket.h

@@ -1,7 +1,8 @@
 /**
  * \file
  * Abstraction layer above BSD sockets. Capsules and simplifies connect
- * accept and listen.
+ * accept and listen for TCP and UDP sockets.
+ * It also provides a mostly unified interface to both types of sockets.
  *
  * \author	Georg Hopp
  *
@@ -25,24 +26,82 @@
 #ifndef __TR_SOCKET_H__
 #define __TR_SOCKET_H__
 
-#include <arpa/inet.h>  // for in_port_t
+#include <arpa/inet.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+//#include <arpa/inet.h>  // for in_port_t
 
 #include "trbase.h"
+#include "tr/interface/socket.h"
 #include "tr/logger.h"
 
-TR_CLASS(TR_Sock) {
-	TR_Logger          log;
-	in_port_t          port;
-	struct sockaddr_in addr;
-	int                handle;
+typedef enum TR_e_socket_fin {
+	TR_FIN_NO   = 0,
+	TR_FIN_RD   = 1,
+	TR_FIN_WR   = 2,
+	TR_FIN_RDWR = 3
+} TR_SocketFin;
+
+TR_CLASS(TR_Socket) {
+	TR_Logger            log;
+	int                  flags;
+	int                  type;
+	char               * host;
+	char               * cname;
+	int                  port;
+	time_t               ttl;
+	struct sockaddr_in   addr; // for now... should be more generic.
+	socklen_t            addrlen;
+	int                  handle;
+	TR_SocketFin         fin_state;
+};
+
+#define TR_socketLog(socket)		(((TR_Socket)(socket))->log)
+#define TR_socketFlags(socket)		(((TR_Socket)(socket))->flags)
+#define TR_socketType(socket)		(((TR_Socket)(socket))->type)
+#define TR_socketHost(socket)		(((TR_Socket)(socket))->host)
+#define TR_socketPort(socket)		(((TR_Socket)(socket))->port)
+#define TR_socketCname(socket)		(((TR_Socket)(socket))->cname)
+#define TR_socketTtl(socket)		(((TR_Socket)(socket))->ttl)
+#define TR_socketAddr(socket)		(((TR_Socket)(socket))->addr)
+#define TR_socketAddrlen(socket)	(((TR_Socket)(socket))->addrlen)
+#define TR_socketHandle(socket)		(((TR_Socket)(socket))->handle)
+#define TR_socketFinState(socket)	(((TR_Socket)(socket))->fin_state)
+#define TR_socketFinRd(socket)		((TR_socketFinState((socket)) & 1) == 1)
+#define TR_socketFinWr(socket)		((TR_socketFinState((socket)) & 2) == 2)
+#define TR_socketFinRdWr(socket)	((TR_socketFinState((socket)) & 3) == 3)
+
+#define TR_socketGetIp(socket)		(TR_socketAddr(socket).sin_addr.s_addr)
+#define TR_socketGetIpStr(socket)	(inet_ntoa(TR_socketGetIp(socket)))
+
+TR_CLASS(TR_TcpSocket) {
+	TR_EXTENDS(TR_Socket);
+	int listen;
+	int connected;
 };
 
-void               TR_socketConnect(TR_Sock this, const char * addr, char (*)[16]);
-void               TR_socketListen(TR_Sock this, int backlog);
-TR_Sock            TR_socketAccept(TR_Sock this, char (*remoteAddr)[16]);
-void               TR_socketNonblock(TR_Sock this);
-in_addr_t          TR_socketGetIp(TR_Sock this);
-const char * const TR_socketGetIpStr(TR_Sock this);
+TR_CLASS(TR_UdpSocket) {
+	TR_EXTENDS(TR_Socket);
+};
+
+typedef int (* TR_socketAction_fptr)(void *);
+
+int          TR_socketInit(TR_Socket, TR_socketAction_fptr);
+TR_SocketFin TR_socketShutdownRead(TR_Socket);
+TR_SocketFin TR_socketShutdownWrite(TR_Socket);
+TR_SocketFin TR_socketShutdown(TR_Socket);
+void         TR_socketClose(TR_Socket);
+void         TR_socketNonblock(TR_Socket);
+
+#define TR_socketBind(socket)		\
+	(TR_socketInit((socket), TR_socketBindAction))
+
+TR_TcpSocket TR_socketAccept(TR_TcpSocket);
+
+#define TR_socketConnect(socket)	\
+	(TR_socketInit((socket), TR_socketConnectAction))
 
 #endif // __TR_SOCKET_H__
 

include/trio.h

@@ -1,10 +1,10 @@
 #ifndef __TR_IO_H__
 #define __TR_IO_H__
 
-#include "tr/logger.h"
 #include "tr/socket.h"
+#include "tr/remote_data.h"
 #include "tr/stream.h"
-#include "tr/interface/logger.h"
+#include "tr/interface/socket.h"
 #include "tr/interface/reader.h"
 #include "tr/interface/writer.h"
 

src/Makefile.am

@@ -7,12 +7,18 @@ TRIO = stream.c \
        read.c \
        write.c \
        socket.c \
-       accept.c \
-       connect.c \
-       listen.c \
-       get_ip.c \
-       get_ip_str.c \
-       nonblock.c \
+       socket_init.c \
+       socket_accept.c \
+       socket_nonblock.c \
+       socket_close.c \
+       socket_shutdown.c \
+       socket_shutdown_read.c \
+       socket_shutdown_write.c \
+       tcp_socket.c \
+       udp_socket.c \
+       remote_data.c \
+       remote_data_set_data.c \
+       i_socket.c \
        i_reader.c \
        i_writer.c
 

src/i_socket.c

@@ -0,0 +1,115 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+
+#include "tr/interface/socket.h"
+#include "tr/remote_data.h"
+#include "trbase.h"
+
+TR_CREATE_INTERFACE(TR_Socket, 4);
+
+int
+TR_socketBindAction(void * _this)
+{
+	int callret;
+
+	TR_RETCALL(_this, TR_Socket, bind, callret);
+
+	return callret;
+}
+
+int
+TR_socketConnectAction(void * _this)
+{
+	int callret;
+
+	TR_RETCALL(_this, TR_Socket, connect, callret);
+
+	return callret;
+}
+
+TR_RemoteData
+TR_socketRecv(void * _this, size_t size)
+{
+	TR_RemoteData remote_data;
+
+	TR_RETCALL(_this, TR_Socket, recv, remote_data, size);
+
+    if (remote_data->ndata < 0) {
+        switch (errno) {
+			case (EAGAIN|EWOULDBLOCK):
+				TR_delete(remote_data);
+                return TR_emptyRemoteData;
+
+            case EINTR:
+            case ENOMEM:
+                // these are fatal and should lead to a shutown
+                // of the whole application...
+				TR_delete(remote_data);
+                return NULL;
+
+            default:
+				TR_delete(remote_data);
+                return NULL;
+        }
+    } else if (remote_data->ndata == 0) {
+        // this is a remote close...
+		TR_delete(remote_data);
+        return NULL;
+    }
+
+    return remote_data;
+}
+
+ssize_t
+TR_socketSend(void * _this, TR_RemoteData data)
+{
+	ssize_t size;
+
+	TR_RETCALL(_this, TR_Socket, send, size, data);
+	TR_delete(data);
+
+    if (size < 0) {
+        switch (errno) {
+            case EINTR:
+            case ENOMEM:
+                // these are fatal and should lead to a shutown
+                // of the whole application...
+                return 0;
+
+            case (EAGAIN|EWOULDBLOCK):
+                return -1;
+
+            case ECONNRESET:
+                // this is a remote close...
+                return -2;
+
+            default:
+                return -2;
+        }
+    }
+
+    return size;
+}
+
+// vim: set ts=4 sw=4:

src/listen.c

@@ -1,59 +0,0 @@
-/**
- * \file
- *
- * \author	Georg Hopp
- *
- * \copyright
- * Copyright © 2012  Georg Hopp
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>     // for atoi() and exit()
-#include <errno.h>      // for errno
-
-#include "tr/socket.h"
-#include "tr/logger.h"
-
-
-void
-TR_socketListen(TR_Sock this, int backlog)
-{
-    (this->addr).sin_family      = AF_INET;           // Internet address family
-    (this->addr).sin_addr.s_addr = htonl(INADDR_ANY); // Any incoming interface
-    //(this->addr).sin_addr.s_addr = inet_addr("127.0.0.1"); // Any incoming interface
-    (this->addr).sin_port        = htons(this->port); // Local port
-
-	/**
-     * Bind to the local address
-	 */
-    if (-1 == bind(this->handle, (struct sockaddr *) &(this->addr), sizeof(this->addr))) {
-        TR_loggerLog(this->log, TR_LOGGER_CRIT,
-                "error binding socket: %s - service terminated",
-                strerror(errno));
-        exit(EXIT_FAILURE);
-    }
-
-	/**
-     * Mark the socket so it will listen for incoming connections
-	 */
-    if (-1 == listen(this->handle, backlog)) {
-        TR_loggerLog(this->log, TR_LOGGER_CRIT,
-                "error binding socket: %s - service terminated",
-                strerror(errno));
-        exit(EXIT_FAILURE);
-    }
-}
-
-// vim: set ts=4 sw=4:

src/remote_data.c

@@ -0,0 +1,66 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "tr/remote_data.h"
+#include "trbase.h"
+
+static
+int
+remoteDataCtor(void * _this, va_list * params)
+{
+	TR_RemoteData     this     = _this;
+	struct sockaddr * addr_ptr = va_arg(*params, struct sockaddr *);
+
+	this->addrlen = va_arg(*params, socklen_t);
+	memcpy(&(this->addr), addr_ptr, this->addrlen);
+
+	this->data  = NULL;
+	this->ndata = 0;
+
+	return 0;
+}
+
+static
+void
+remoteDataDtor(void * _this)
+{
+	TR_RemoteData this = _this;
+
+	TR_MEM_FREE(this->data);
+}
+
+TR_INIT_IFACE(TR_Class, remoteDataCtor, remoteDataDtor, NULL);
+TR_CREATE_CLASS(TR_RemoteData, NULL, TR_IF(TR_Class));
+
+TR_INSTANCE(TR_RemoteData, TR_emptyRemoteData, NULL, 0, NULL, NULL);
+
+// vim: set ts=4 sw=4:

src/remote_data_set_data.c

@@ -0,0 +1,43 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>     // for atoi() and exit()
+#include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
+
+#include "tr/remote_data.h"
+#include "tr/logger.h"
+
+void
+TR_remoteDataSetData(TR_RemoteData this, unsigned char * data, size_t size)
+{
+	if (this->data && TR_getSize(this->data) < size) {
+		TR_MEM_FREE(this->data);
+	}
+
+	this->data = TR_malloc(size);
+	this->ndata = size;
+	memcpy(this->data, data, size);
+}
+
+// vim: set ts=4 sw=4:

src/socket.c

@@ -23,7 +23,14 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
 
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "tr/remote_data.h"
 #include "tr/socket.h"
 #include "tr/logger.h"
 #include "trbase.h"
@@ -32,30 +39,15 @@ static
 int
 socketCtor(void * _this, va_list * params)
 {
-	TR_Sock this = _this;
-	int reUse    = 1;     //! \todo make this configurable
-	int port;
-
-	this->log  = va_arg(* params, TR_Logger);
-	port       = va_arg(* params, int);
-
-	//! if port is -1 do not initialize the socket. (Used with accept)
-	if (-1 == port) {
-		return 0;
-	} else {
-		this->port = port;
-	}
+	TR_Socket this  = _this;
 
-	//! Create socket for incoming connections
-	if (-1 == (this->handle = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP))) {
-		TR_loggerLog(this->log, TR_LOGGER_CRIT,
-				"error opening socket: %s - service terminated",
-				strerror(errno));
-		return -1;
-	}
-
-	//! Make the socket REUSE a TIME_WAIT socket
-	setsockopt(this->handle, SOL_SOCKET, SO_REUSEADDR, &reUse, sizeof(reUse));
+	this->type      = 0;
+	this->handle    = -1;
+	this->log       = va_arg(*params, TR_Logger);
+	this->host      = va_arg(*params, char*);
+	this->port      = va_arg(*params, int);
+	this->flags     = va_arg(*params, int);
+	this->fin_state = TR_FIN_RDWR;
 
 	return 0;
 }
@@ -64,15 +56,33 @@ static
 void
 socketDtor(void * _this)
 {
-	TR_Sock this = _this;
+	TR_Socket this = _this;
+
+	TR_MEM_FREE(this->cname);
 
 	if (STDERR_FILENO < this->handle) {
-		shutdown(this->handle, SHUT_RDWR);
-		close(this->handle);
+		TR_socketClose(this);
+	}
+}
+
+static
+int
+socketBind(void * _this)
+{
+	TR_Socket this = _this;
+	int       state;
+
+	state = bind(this->handle, (struct sockaddr *)&(this->addr), this->addrlen);
+
+	if (-1 == state) {
+		perror("bind");
 	}
+
+	return state;
 }
 
 TR_INIT_IFACE(TR_Class, socketCtor, socketDtor, NULL);
-TR_CREATE_CLASS(TR_Sock, NULL, TR_IF(TR_Class));
+TR_INIT_IFACE(TR_Socket, socketBind, NULL, NULL);
+TR_CREATE_CLASS(TR_Socket, NULL, TR_IF(TR_Class), TR_IF(TR_Socket));
 
 // vim: set ts=4 sw=4:

src/accept.c → src/socket_accept.c

@@ -20,38 +20,48 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _POSIX_SOURCE 1
+
+#include <stdio.h>     // for atoi() and exit()
 #include <errno.h>      // for errno
+#include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
 
-#include "trbase.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
 #include "tr/socket.h"
 #include "tr/logger.h"
 
-TR_Sock
-TR_socketAccept(TR_Sock this, char (*remoteAddr)[16])
+TR_TcpSocket
+TR_socketAccept(TR_TcpSocket this)
 {
-    TR_Sock      sock;   // Socket for client
-    unsigned int len;    // Length of client address data structure
+	TR_Socket remote = TR_new(TR_TcpSocket, TR_socketLog(this), NULL, 0, 0);
+	//int flags;
 
-    // Set the size of the in-out parameter
-    len = sizeof(this->addr);
+	remote->handle = accept(
+			TR_socketHandle(this),
+			(struct sockaddr *)&(remote->addr),
+			&(remote->addrlen));
 
-	sock = TR_new(TR_Sock, this->log, -1);
+	//flags = fcntl(remote->handle, F_GETFL, 0);
+	//fcntl(remote->handle, F_SETFL, flags | O_NONBLOCK);
 
-    // Wait for a client to connect
-    sock->handle = accept(this->handle, (struct sockaddr *) &(sock->addr), &len);
-    if (-1 == sock->handle) {
-        TR_loggerLog(this->log, TR_LOGGER_WARNING,
-                "error accepting connection: %s", strerror(errno));
-    } else {
-		strcpy(*remoteAddr, inet_ntoa((sock->addr).sin_addr));
+	remote->host  = TR_strdup(inet_ntoa(remote->addr.sin_addr));
+	remote->port  = ntohs(remote->addr.sin_port);
+	remote->type  = TR_socketType(this);
+	remote->flags = TR_socketFlags(this);
 
-        //loggerLog(this->log, LOGGER_INFO,
-		//		"handling client %s\n", inet_ntoa((sock->addr).sin_addr));
-    }
+	if (-1 == remote->handle) {
+		perror("accept");
+		TR_delete(remote);
+	}
 
-    return sock;
+	return (TR_TcpSocket)remote;
 }
 
 // vim: set ts=4 sw=4:

src/get_ip.c → src/socket_close.c

@@ -20,16 +20,20 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <arpa/inet.h>
+#include <stdlib.h>     // for atoi() and exit()
+#include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
 
-#include "trbase.h"
 #include "tr/socket.h"
 #include "tr/logger.h"
 
-in_addr_t
-TR_socketGetIp(TR_Sock this)
+void
+TR_socketClose(TR_Socket this)
 {
-	return this->addr.sin_addr.s_addr;
+	TR_socketShutdown(this);
+	close(this->handle);
+	this->handle = -1;
 }
 
 // vim: set ts=4 sw=4:

src/socket_init.c

@@ -0,0 +1,103 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _POSIX_SOURCE 1
+
+#include <stdlib.h>     // for atoi() and exit()
+#include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "tr/socket.h"
+#include "tr/logger.h"
+
+int
+TR_socketInit(TR_Socket this, TR_socketAction_fptr action)
+{
+    struct addrinfo   hint;
+    struct addrinfo * info, * current_info;
+	char              port_str[6];
+
+    hint.ai_socktype  = this->type;
+    hint.ai_flags     = this->flags;
+    hint.ai_family    = AF_UNSPEC;
+    hint.ai_protocol  = 0;
+    hint.ai_addrlen   = 0;
+    hint.ai_canonname = NULL;
+    hint.ai_addr      = NULL;
+    hint.ai_next      = NULL;
+
+    sprintf(port_str, "%u", this->port);
+    if (0 != getaddrinfo(this->host, port_str, &hint, &info)) {
+        // TODO error handling...
+        return FALSE;
+    }
+
+    current_info = info;
+    for (
+			current_info = info;
+			current_info;
+			current_info = current_info->ai_next)
+	{
+        this->handle = socket(
+                current_info->ai_family,
+                current_info->ai_socktype,
+                current_info->ai_protocol);
+
+        if (-1 == this->handle) {
+            continue;
+        }
+
+		this->addrlen = current_info->ai_addrlen;
+		memcpy(&(this->addr), current_info->ai_addr, this->addrlen);
+
+		if (0 == action(this)) {
+			break; // success / open and bind or open and connect...
+		}
+
+		close(this->handle);
+		this->handle = -1;
+    }
+
+    if (NULL != current_info) {
+		int reUse = 1; //! \todo make this configurable
+		//int flags = fcntl(this->handle, F_GETFL, 0);
+
+		//fcntl(this->handle, F_SETFL, flags | O_NONBLOCK);
+		this->cname     = TR_strdup(current_info->ai_canonname);
+		this->fin_state = TR_FIN_NO;
+
+		//! Make the socket REUSE a TIME_WAIT socket
+		setsockopt(this->handle, SOL_SOCKET, SO_REUSEADDR, &reUse, sizeof(reUse));
+	}
+
+	freeaddrinfo(info);
+
+	return TRUE;
+}
+
+// vim: set ts=4 sw=4:

src/nonblock.c → src/socket_nonblock.c

@@ -28,7 +28,7 @@
 #include "tr/logger.h"
 
 void
-TR_socketNonblock(TR_Sock this)
+TR_socketNonblock(TR_Socket this)
 {
 	int flags = fcntl(this->handle, F_GETFL, 0);
 	fcntl(this->handle, F_SETFL, flags | O_NONBLOCK);

src/get_ip_str.c → src/socket_shutdown.c

@@ -20,16 +20,25 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <arpa/inet.h>
+#include <stdlib.h>     // for atoi() and exit()
+#include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
 
-#include "trbase.h"
 #include "tr/socket.h"
 #include "tr/logger.h"
 
-const char * const
-TR_socketGetIpStr(TR_Sock this)
+TR_SocketFin
+TR_socketShutdown(TR_Socket this)
 {
-	return inet_ntoa(this->addr.sin_addr);
+	if (TR_socketFinRdWr(this)) {
+		return this->fin_state;
+	}
+
+	shutdown(this->handle, SHUT_RDWR);
+	this->fin_state |= TR_FIN_RDWR;
+
+	return this->fin_state;
 }
 
 // vim: set ts=4 sw=4:

src/connect.c → src/socket_shutdown_read.c

@@ -22,32 +22,26 @@
 
 #include <stdlib.h>     // for atoi() and exit()
 #include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
 
 #include "tr/socket.h"
 #include "tr/logger.h"
 
-void
-TR_socketConnect(TR_Sock this, const char * addr, char (*remoteAddr)[16])
+TR_SocketFin
+TR_socketShutdownRead(TR_Socket this)
 {
-	inet_pton(AF_INET, addr, &((this->addr).sin_addr));
-    (this->addr).sin_family = AF_INET;           // Internet address family
-    (this->addr).sin_port   = htons(this->port); // Local port
+	if (TR_socketFinRd(this)) {
+		return this->fin_state;
+	}
 
-	if (-1 == connect(
-				this->handle,
-				(struct sockaddr*) &(this->addr),
-				sizeof(this->addr)))
-	{
-        TR_loggerLog(this->log, TR_LOGGER_CRIT,
-                "error connection socket: %s - service terminated",
-                strerror(errno));
-        exit(EXIT_FAILURE);
-    } else {
-		strcpy(*remoteAddr, inet_ntoa((this->addr).sin_addr));
+	if (0 == shutdown(this->handle, SHUT_RD)) {
+		this->fin_state |= TR_FIN_RD;
+	} else {
+		this->fin_state |= TR_FIN_RDWR;
+	}
 
-        TR_loggerLog(this->log, TR_LOGGER_INFO,
-				"handling connection %s\n", inet_ntoa((this->addr).sin_addr));
-    }
+	return this->fin_state;
 }
 
 // vim: set ts=4 sw=4:

src/socket_shutdown_write.c

@@ -0,0 +1,47 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>     // for atoi() and exit()
+#include <errno.h>      // for errno
+#include <stdio.h>
+#include <unistd.h>
+
+#include "tr/socket.h"
+#include "tr/logger.h"
+
+TR_SocketFin
+TR_socketShutdownWrite(TR_Socket this)
+{
+	if (TR_socketFinWr(this)) {
+		return this->fin_state;
+	}
+
+	if (0 == shutdown(this->handle, SHUT_WR)) {
+		this->fin_state |= TR_FIN_WR;
+	} else {
+		this->fin_state |= TR_FIN_RDWR;
+	}
+
+	return this->fin_state;
+}
+
+// vim: set ts=4 sw=4:

src/tcp_socket.c

@@ -0,0 +1,121 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "tr/socket.h"
+#include "tr/logger.h"
+#include "trbase.h"
+
+static
+int
+tcpSocketCtor(void * _this, va_list * params)
+{
+	TR_TcpSocket this = _this;
+
+	TR_PARENTCALL(_this, TR_Class, ctor, params);
+
+	TR_socketType(this) = SOCK_STREAM;
+	this->listen        = FALSE;
+	this->connected     = FALSE;
+
+	return 0;
+}
+
+static
+int
+tcpSocketBind(void * _this)
+{
+	TR_TcpSocket this = _this;
+	int          bind_ret;
+
+	TR_PARENTRETCALL(_this, TR_Socket, bind, bind_ret);
+
+	if (bind_ret != 0) {
+		return -1;
+	}
+
+	if (listen(TR_socketHandle(this), 128) != 0) {
+		// error
+		return -1;
+	}
+	this->listen = TRUE;
+
+	return 0;
+}
+
+static
+int
+tcpSocketConnect(void * _this)
+{
+	TR_Socket this = _this;
+
+	return connect(
+			this->handle,
+			(struct sockaddr *)&(this->addr),
+			this->addrlen);
+}
+
+static
+TR_RemoteData
+tcpSocketRecv(TR_Socket this, size_t size)
+{
+	TR_RemoteData rdata = TR_new(TR_RemoteData, &(this->addr), this->addrlen);
+	unsigned char buffer[size];
+	ssize_t       received;
+
+	received = recv(this->handle, buffer, size, this->flags);
+
+	if (-1 == received) {
+		perror("recv");
+		TR_delete(rdata);
+	} else {
+		TR_remoteDataSetData(rdata, buffer, received);
+	}
+
+	return rdata;
+}
+
+static
+ssize_t
+tcpSocketSend(TR_Socket this, TR_RemoteData data)
+{
+	return send(this->handle, data->data, data->ndata, this->flags);
+}
+
+TR_INIT_IFACE(TR_Class, tcpSocketCtor, NULL, NULL);
+TR_INIT_IFACE(
+		TR_Socket,
+		tcpSocketBind,
+		tcpSocketConnect,
+		tcpSocketRecv,
+		tcpSocketSend);
+TR_CREATE_CLASS(TR_TcpSocket, TR_Socket, TR_IF(TR_Class), TR_IF(TR_Socket));
+
+// vim: set ts=4 sw=4:

src/udp_socket.c

@@ -0,0 +1,102 @@
+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2012  Georg Hopp
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "tr/socket.h"
+#include "tr/logger.h"
+#include "trbase.h"
+
+static
+int
+udpSocketCtor(void * _this, va_list * params)
+{
+	TR_Socket this = _this;
+
+	TR_PARENTCALL(_this, TR_Class, ctor, params);
+
+	this->type = SOCK_DGRAM;
+
+	return 0;
+}
+
+static
+TR_RemoteData
+udpSocketRecv(TR_Socket this, size_t size)
+{
+	TR_RemoteData      rdata;
+	struct sockaddr_in addr;
+	socklen_t          addrlen = this->addrlen;
+	unsigned char      buffer[size];
+	ssize_t            received;
+
+	received = recvfrom(
+			this->handle,
+			buffer,
+			size,
+			this->flags,
+			(struct sockaddr *)&addr,
+			&addrlen);
+
+	if (-1 == received) {
+		perror("recvfrom");
+	} else {
+		rdata = TR_new(TR_RemoteData, &addr, addrlen);
+		TR_remoteDataSetData(rdata, buffer, received);
+	}
+
+	return rdata;
+}
+
+static
+ssize_t
+udpSocketSend(TR_Socket this, TR_RemoteData data)
+{
+	ssize_t send;
+
+	send = sendto(
+			this->handle,
+			data->data,
+			data->ndata,
+			this->flags,
+			(struct sockaddr *)&(data->addr),
+			data->addrlen);
+
+	if (-1 == send) {
+		perror("sendto");
+	}
+
+	return send;
+}
+
+TR_INIT_IFACE(TR_Class, udpSocketCtor, NULL, NULL);
+TR_INIT_IFACE(TR_Socket, NULL, NULL, udpSocketRecv, udpSocketSend);
+TR_CREATE_CLASS(TR_UdpSocket, TR_Socket, TR_IF(TR_Class), TR_IF(TR_Socket));
+
+// vim: set ts=4 sw=4:

trio.h

@@ -1,93 +0,0 @@
-/* trio.h.  Generated from trio.h.in by configure.  */
-/* trio.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#define HAVE_DLFCN_H 1
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#define HAVE_INTTYPES_H 1
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `memset' function. */
-/* #undef HAVE_MEMSET */
-
-/* Define to 1 if you have the <stdarg.h> header file. */
-#define HAVE_STDARG_H 1
-
-/* Define to 1 if stdbool.h conforms to C99. */
-/* #undef HAVE_STDBOOL_H */
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdio.h> header file. */
-#define HAVE_STDIO_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-#define HAVE_STRINGS_H 1
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <syslog.h> header file. */
-#define HAVE_SYSLOG_H 1
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
-
-/* Define to 1 if the system has the type `_Bool'. */
-#define HAVE__BOOL 1
-
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#define LT_OBJDIR ".libs/"
-
-/* Name of package */
-#define PACKAGE "libtrio"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "Georg Hopp <georg@steffers.org>"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "libtrio"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "libtrio 0.0.0"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "libtrio"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "0.0.0"
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Version number of package */
-#define VERSION "0.0.0"
-
-/* Define to `__inline__' or `__inline' if that's what the C compiler
-   calls it, or to nothing if 'inline' is not supported under any name.  */
-#ifndef __cplusplus
-/* #undef inline */
-#endif
-
-/* Define to `int' if <sys/types.h> does not define. */
-/* #undef pid_t */
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-/* #undef size_t */